Improvement in oilers



UNrrED S'rArEs PATENT FFICE.

DEXTER H. CHAMBERLAIN, OF WEST ROXBURY, MASSACHUSETTS.

IMPROVEMENT IN OILERS.

Specification forming part of Letters Patent No. l 52,332, dated June 23, 1874; application filed l May Q5, 1874.

To all whom it may concern:

Be it known that I, DEXTER H. CHAMBER- LAIN, of West Roxbury, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Oilers; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyin g drawings and to the letters of reference marked thereon, which form a part of this specieation.

My invention relates to improvements in oilers; and consists in the combination, with an oiler, of a central hollow tube, provided, in its lower end, with a radial hollow arm,

through which the oil is forced up through the central tube as soon as the bottom of the oiler is pressed in by the operator. The abovenamed hollow tube and its radial arm are allowed to turn freely in a step in the center ofthe bottom of the oiler, so that no matter in what inclination the oiler is used, the extreme end of the aforesaid radial arm will swing, by its own weight, into, and be cov ered by, the liquidein the oiler. The upper end of the aforesaid central tube fits loosely in a recess in the nozzle, so that the outer air will be allowed to enter the oiler through the annular space around the upper end of said tube. Said recess is made tapering above the end of the said central tube, so as to serve as a seat for theupper end of the said central tube when forced upward, by which arrangement the air is prevented from entering` the aforesaid central tube, and by which all the liquid that is forced up through the said een tral tube is delivered to the nozzle without any possibility of owing back tothe oiler. The said central tube is automatically moved to its position for the admittance of the outer air to the oiler, by means of a coiled spring,

a represents an ordinary bowl, provided with a iiexible bottom, b, in the usual manner. In the center' of the bottom b is secured a step, c, that serves as a bearing for the lower end of a central hollow tube, d. The lower end of the said central tube d is extended as a radial hollow arm, c, the extreme end of which extends very near to the junction between the bottom b and thelower edge ofthe bowl a. A weight, f, is shown at the end ofv the hollow arm c, for the purpose of automatically moving the said arm e, by its own gravity, to such a position that the end of the hollow arm e shall be dipped into, and be covered by, the liquid in the oiler, whether the latter is kept in a vertical or horizontal position, or in any inclination between the said two positions. The arm c may, however, be made heavy enough, so as to dispense with the additional weight f. g represents the nozzle screwed to the upper part of the bowl a in the usual manner. Arecess, h, somewhat larger in diameter than the outer diameter of the tube d, is made in the nozzle g, to serve for two purposes, namely: To allow the air to enter the bowl through the annular space around the upper end of the tube d when the whole is in the position as shown in Fig. l 5 and, secondly, to serve as a guide for the upper end ot' the tube d. The recess h is contracted above the upper end of the tube d, as a tapering sea-t, i, against which the upper end of the hollow tube d is forced as soon as the flexible bottom bis pressed in by the operator, thereby making one continuous pipe of the tube d and orifice 7c. A coiled spring', l, surrounds the pipe d, and is coniined between the lower part ot' the recess h and a eollar, on, on the pipe d, as shown in Fig. l, by means of which the pipe d is forced downward to the position shown in Fig. l as soon as the operator ceases to press on the bottom b ofthe bowl a.

It will be understood from the above that the arm e and the tube d are free to move in a complete circle for the purpose of immersin g the extreme of the hollow arm e into the liquid, even if the oiler should be inclined to a horizontal position, and turned around its axis when in such a position.

The operation of my invention is as follows: If the oiler is used in a vertical, inclined, or

horizontal position, and the operator presses his finger on the iiexible bottom I), the upper end of the tube d is thereby pressed onto its seat fi, by which the air in the bowl a is prevented from eseapin g, and, by the increase of the pressure of the air in the bowl acting upon the liquid therein, the liquid is forced into the hollow arm e and eentral tube d, escaping through the nozzle k. As soon as the operator eeases to press on the iexible bottom b, the eoiled spring l aots on the collar m, and withdraws the upper end of the tube d from its tapering seat fe', thus allowing the outer air to enter the bowl through' the annular spaee around the upper end ofthe tube d, instead of passing through said tube anditshollow arm e. Then the oiler is turned upside down, the

liquid is forced out through the annular space at h in the ordinary way.

It will thus be seen that, by the use ot' this,

my improved oiler, I am able to throw a jet of oil in a vert-ical, horizontal, or inclined position very quicklyT and powerfully.

What I wish to secure by Letters Patent, and claim, is

l. An oiler provided with a movable eentral tube, d, and radial khollow arm e, as and for the purpose set forth.

2. The combination, with an oiler, a, and its flexible bottom b, of the tube d and hollow arm e, recess h, seat i, and eoiled spring l,witl1 its Collar m, as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have aflixed my signature in presence of two witnesses.

DEXTER H. CHAMBERLAIN.

Witnesses:

ALBAN ANDRN, J oHN R. HEARD. 

